Number
313
313 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 7
- Digital root
- 7
- Palindrome
- Yes
- Divisor count
- 2
- σ(n) — sum of divisors
- 314
Primality
313 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- three hundred thirteen
- Ordinal
- 313th
- Roman numeral
- CCCXIII
- Binary
- 100111001
- Octal
- 471
- Hexadecimal
- 139
Also seen as
Prime neighborhood
Unicode codepoint
Ĺ
U+0139
Uppercase letter (Lu)
UTF-8 encoding: C4 B9 (2 bytes).
Hex color
#000139
RGB(0, 1, 57)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.57.